I can't imagine that happening. I know it's the Australian system, but the mindset is different here, and we've been used to free NHS and education to secondary level, so it would be very unpopular. Pensioners already pay a lot for care if we need it - singling out pensions to be cut would be very unpopular, and when younger people realised the impact on their likely inheritance, some of their prejudices might dissipate, too.
Further, whilst most of us are fully aware that money doesn't go into a personal 'pot', it is also the case that most of us have paid 8% of our income into NI contributions that we were told decades ago would mean we would get a state pension when the time came. It would be politically ruinous to take the pension from those who'd paid in and give it to those who didn't. People have planned their retirement based on getting a SP, so removing it on the basis that people have also paid into occupational pensions or have saved would make a huge difference to their lives - there would be massive repercussions for anyone trying to do that, particularly as the raise in women's pension age is still a hot potato.
I think the triple lock will go, but I also think that before it does there will be a sweetener of some sort - maybe a link to wages, so the pension sits at a percentage of the average wage.